This work focuses specifically on environmental regulation of oil and gas. It contains in-depth articles on petroleum environmental regulation and management, written by well-known scholars, international lawyers and practitioners from around the world. The text deals with the environmental aspect of the hydrocarbon cycle in general and oil and gas exploration and production in particular, and its main thrust is management of environmental legal risks and issues in upstream operations. Part of the objective of the text is to introduce the best practices and legal tools of environmental management of petroleum exploration and production to the international oil community and other parties interested in the subject.